CAJ | 학술논문

针对电源设备出厂老化测试电能浪费问题,设计了一种基于TMS320F28335DSP的恒流型馈能式电子负载。描述了一种原边带箝位二极管的ZVS移相全桥变换器的工作特点,采用了一种简便易行的移相波形数字控制方法 ;基于DC/DC电压前馈、DC/AC电压电流双环控制方法,研制出一台3.5 kW试验样机。实验结果表明：该系统性能稳定、调节速度快,能很好地满足测试老化及馈网要求。
침대전원설비출엄노화측시전능낭비문제,설계료일충기우TMS320F28335DSP적항류형궤능식전자부재。묘술료일충원변대겸위이겁관적ZVS이상전교변환기적공작특점,채용료일충간편역행적이상파형수자공제방법 ;기우DC/DC전압전궤、DC/AC전압전류쌍배공제방법,연제출일태3.5 kW시험양궤。실험결과표명：해계통성능은정、조절속도쾌,능흔호지만족측시노화급궤망요구。
In order to solve the energy-wasting problem of power devices in the process of burn-in test, a kind of constant- current energy-feedback electric load based on TMS320F28335DSP is designed. It describes the operating feathers of a phase shifting full bridge ZVS PWM converter with clamping diodes in the primary side of transformer; and a feasible phase shifting PWM wave digital control method is adopted. Based on the method of voltage feed-forward in DC/DC, and current-voltage dual loop control in DC/AC, a 3.5 kW electric load is made. The test results show that this device has stable performance, fast corresponding speed, and can meet the requirements of burn-in test and grid feedback.